RIO Rio2 Limited New

Rio Alto Mining Limited ("Rio Alto" or the "Company") (TSX
VENTURE:RIO)(OTCQX:RIOAF)(LMA:RIO)(DBFrankfurt:MS2) is pleased to announce that
Alex Black will now serve as the Company's Chief Executive Officer in addition
to his continuing role as President and that Victor Gobitz will serve as the
Company's Chief Operating Officer commencing February 1, 2012. Mr. Black and Mr.
Gobitz also serve as directors of the Company.


Mr. Gobitz is an experienced mining engineer with extensive experience in the
start up and expansion of mining projects. Prior to his appointment as the
Company's Chief Operating Officer, Mr. Gobitz was the CEO of Corporacion Minera
Castrovirreyna until June 2011. Castrovirreyna is a Peruvian company devoted to
the exploration, development, treatment and commercialization of minerals such
as silver, gold, lead and zinc. Mr. Gobitz joined the Rio Alto Board of
Directors in March 2011 and currently sits on the Board of Directors of two
other public mining companies listed on the Bolsa de Valores de Lima, Volcan
Compania Minera and Castrovirreyna Compania Minera. Mr. Gobitz received his
professional education at the Pontificia Universidad Catolica del Peru from 1981
to 1986 and obtained a Masters degree in Business Administration from Escuela de
Administracion de Negocios - ESAN in 1998. Mr. Gobitz is also a Director of the
Peruvian Mining Safety Institute - ISEM and Member of the Board of the Peruvian
Corps of Engineers, Chapter of Mining Engineers - CIP. 


Mr. Gobitz has been granted a total of 200,000 options exercisable at $3.75 for
a period of five years pursuant to the Company's stock option plan in connection
with his appointment as Chief Operating Officer. 


To learn more about Rio Alto Mining Limited, please visit: www.rioaltomining.com
or Rio Alto's SEDAR profile at www.sedar.com.


ON BEHALF OF THE BOARD OF RIO ALTO MINING LIMITED

Alex Black, President & CEO

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